Description

Engineered for industrial machinery protection and condition monitoring systems, the Bently Nevada 21747-080-00 acts as a critical signal transmission link within the 7200 Series proximity transducer system. This high-reliability proximity probe extension cable facilitates the connection between a 5mm or 8mm proximity probe and the corresponding Proximitor sensor module. By maintaining high-frequency electrical calibration integrity, it ensures the precise transmission of eddy current signals representing shaft vibration, position, or speed.

Constructed with premium coaxial cable materials, this version features an overall length of 8.0 meters (approximately 315 inches) without stainless steel protective armor. It is designed for applications where the routing path is already protected within conduit, junction boxes, or dedicated cable trays. The specialized coaxial connectors on both ends provide stable electrical impedance, minimizing signal attenuation and guarding against environmental contaminants that could compromise measurement accuracy.

Features

• Specifically calibrated for seamless integration with Bently Nevada 7200 Series 5mm and 8mm proximity transducer systems.
• Features an 8.0-meter (315-inch) nominal length designed to meet precise system electrical length requirements.
• Unarmored configuration (Option 00) allows for maximum flexibility and easier routing through narrow conduits and bends.
• Premium high-frequency coaxial construction ensures low signal loss and excellent noise immunity.
• Robust coaxial connectors deliver reliable mechanical mating and stable electrical performance in high-vibration environments.

Applications

• Steam and gas turbine radial vibration and axial thrust position monitoring.
• High-speed centrifugal compressor shaft displacement measurement.
• Hydroelectric generator shaft vibration monitoring.
• Industrial gearbox and large rotating machinery shaft diagnostics.

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Bend Radius: Observe the minimum bend radius constraints of the coaxial core during installation to prevent internal dielectric damage or calibration shifts.
• Connector Protection: Ensure connectors are completely clean and dry before mating. Use silicone connector boots or self-fusing tape in environments where exposure to oil, water, or chemical solvents is expected.
• Routing Practices: Keep extension cables physically separated from high-voltage power lines and variable frequency drive (VFD) motor cables to mitigate electromagnetic interference.

Compliance and Certifications

• CE Compliant
• Designed for intrinsically safe installation standards when integrated with certified Bently Nevada barrier and transducer components.